Driving mechanism for snowplows



Jan. 14, 1930. J s, PAYNE 1,743,683

DRIVING MECHANISM FOR SNOWPLOWS.

Filed Oct. 23. 1926 Patented Jan. 14, 1930 UNITED STATES JOHN s. PAYNE,or MIDLAND PARK BonoUeHfivEw JiaRSaT.`

DRIVING MECHANISM non `,s'ivowrnowns Y Application mea october 23,192s.. serial No. 143,535!l will enable the stub shafts, .with thebevelv gears mounted thereon, to be assembled in the machine, anddisassembled therefrom, without disassembling other parts of themachine, whereby a material economy of time and labor will be effected.

It has been the practice, in snow plows heretofore known, to drive therotor by a main shaft, carrying abevel gear, which is driven by twosmaller bevel gears, mounted on stub shafts, disposed at a right angleto the main shaft, one on each side thereof. The stub shafts arejournalled in bearing supports, formed integrally with the bed platecasting, which type of construction has nezo cessitated the removal,vertically, of all three shafts, with their gears, and the disconnectionof many associated parts, such as both connecting rods, and botheccentric rods, whenever it has been necessary to repair or replace oneof the small gears. This disadvantage is attended with the furtherdisadvantage of having to dismantle substantially all of the housing atthe front end of the snow plow, to permit removal of the three shafts.

:so As the small gears are subjected to a great amount of wear, theirfrequent repair and renewal are incidents of service, and the operations of assembling and disassembling the gears, involves greatinconvenience and eX- pense. Y

In my improved construction, the bearing l'blocks for the stub shaftsare formed with dove tails, which lit in complementary grooves in thebed, thus permitting the bear 40 ing blocks, stub shafts, and smallbevel gears to be moved, as a unit, horizontally away from the machinewithout disassembling any of the other parts of the machine, the unitbeing of a size to permit it to be moved out of the usual door in theside wall of the housing.

The improvement claimed is hereinafter fully set forth. y

In accompanying drawing: Figure 1 is a 5G half vertical transversesection, of the rotor driving mechanism of a-snow plow embodying myinvention, showing-one of the stub shafts with its bed plate, bearingAblock, crank, and bevel gear; and, Fig. 2, an'end view of theconstructionl shown in Fig. 1, the

In the` practice of my' invention, referring desoriptively to thespecific embodiment thereof which is herein exemplified as applied ingVthe rotor, ofl usual lconstruction, (not shown), extends Elongitudinallyof the Aplow frame, and carries .a'large bevel gear, 11, which is drivenby. two'smaller bevel gears,

12, mounted onstub shafts,l 13, disposed one l i on each'side of the'main shaft, and at a right angle thereto'.` i crank, 11,A and ismounted in a bearing-block, comprising fa body, 15,-formed' with adove.-

tail `base,'1.5a.-and a cap, 16, detachablyi con- 70W nected to thelbody by bolts, 17. Aiiange, 18, extends fromY-each side @ofthe body,and is adapted to vreceive bolts, 19,Y which detach#v ably fasten theblockto the bed,"2();,connectedy to the middle'sills, 21, ofthejfsnowplow 75" frame.` y i The bed, 20, is ,formed ywith a dovet-ail groove,20a-,adapted to receive the dove tail,

15a, on the body of the bearingblock, and..

is provided with bolt holes which receive the s bolts, 19, for securingthe blocks in place. The grooves, 20a, are of sufficient width to permitthe small gears, when assembled on their stub shafts, to be movedtherethrough.

In assembling the machine, a bearing block, ;v n

stub shaft, small bevel gear, and crank, are assembled as a unit, whichis moved into place, to bring the small bevel gear into mesh with thelarge bevel gear, 11, by sliding the dovetail, 15a, of the block, intothe groove, 90"

Each stub `shaftcarries 'a shafts in proper position. It is furtherWithin the contemplation of the invention to form the bed as an integralpart of the longitudinal sills of the snow plow.

From the foregoing descriptiomit will be l obvious that, when it isdesired to repair or replace a small bevel gear, it ismerely necessarytounfasten the bolts, 19, whereupon the stub shafts, small gear, crank,and bearing block, may be moved, as a unit, horizontally away from theremainder of the machine. The improvement obviates the disadvantage,present in snow plows heretofore known, of having to removeall threeshafts with their gears, from the machine, and dismantling substantiallyall of the housing at the front of the plow, to enable such removal.

I 4claim as my invention and desire to secure by Letters Patent:

1. Ina device of the character described,

vthe combination of a journal box having lateral'flanges and adownwardly extending portion therefrom providing a rigid unitarystructure for the journal; a support for the box having a channel forengaging the said downwardly extending portion, and lateralk extensionsbeneath said flanges; and means for securing the box relative to thesupport.

2. In a device of the character described,

Ythe combination of a journal box having lateral flanges and adownwardly extending portion therefrom providing a rigid unitarystruct-ure for the journal, said portion having a'horizontal base anddownwardly and outwardly flaring partial side walls; a support for thebox having a channel for engaging said downwardly extending portion Yhaving a horizontal seat for supporting said horizontal base, and sidewalls opposite to and spaced from the said flaring walls, and lateralextensions beneath said flanges; and means for securing the box relativeto the support, comprising keys engaged in said spaces for holding thebox upon its seat.

` JOHN S. PAYNE.'

